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Cushion|Lab Grown|IGI

0.51ct E VVS1 Cushion Lab Grown Diamond

GD • E/VVS1 • IGI LG691513964

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG691513964

Diamond specifications and retailer prices

From $263 NZD
$148 USD
As of October 30, 2026
Save $868 NZD (77%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,130 NZD at Riddles Jewelry · As of October 29, 2026
View at Riddles Jewelry

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG691513964 or 691513964. Listed at 6 retailers as of October 29, 2026, with prices from $263 to $1,130, a $868 spread on the same certified stone. Riddles Jewelry lists it at $1,130. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691513964
Dimensions5.56 × 4.04 × 2.77 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.56 mm4.04 mm0.51 ctE / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691513964
Side View
Table 61.0%Crown 35.2°Girdle: MED-THKPavilion 35°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $959 NZD|Low: $197 NZD|High: $2,200 NZD|Avg: $909 NZD|+8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Riddles Jewelry
October 19, 2026
Retailer 10$263 NZD
Retailer 13$477 NZD
Retailer 9$483 NZD
Retailer 8$493 NZD
Retailer 7$581 NZD
Retailer 5$653 NZD
Retailer 6$880 NZD
Retailer 3$884 NZD
Retailer 1$959 NZD
Retailer 11$1,114 NZD
Riddles Jewelry$1,130 NZD
Retailer 12$1,220 NZD
Retailer 4$1,227 NZD
Retailer 2$1,265 NZD
Retailer 14$2,200 NZD

10 data points across 15 retailers

6 retailers$263 NZD to $1,130 NZD

A
Cheapest Retailer
-
$263 NZD
$148 USD
Final sale: no returns
B+
Retailer 2
-
$483 NZD
$272 USD
View
B+
Retailer 3
-
$493 NZD
$278 USD
View
B+
Retailer 4
-
$581 NZD
$328 USD
View
B
Retailer 5
-
$959 NZD
CA$750 CAD
View
Most Expensive
B
Riddles Jewelry
1966220238 · Oct 29
$1,130 NZD
$637 USD
View
5 more retailers have this diamond
Prices start from $263 NZDSave up to $868 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Cushion
$263 NZD